Determinations of dinotefuran and metabolite levels before and after household coffee processing in coffee beans using solid‐phase extraction coupled with liquid chromatography‐tandem mass spectrometry

“…Following a precise protocol can influence the quantity and quality of pesticides present in the coffee beans and hence the influence of these pesticides on human health upon consumption. A study has been conducted to determine the dinotefuran (an insecticide of neonicotinoid class) and its metabolites during the different steps—washing, roasting, and brewing the beans; preparing the infusion-using LC-MS ( 76 ). The aim of the study was to prove the necessity of the follow-up of transfer of pesticides before having the infusion ready to be consumed taking into consideration the half-life of the pesticide of interest.…”

Section: Transfer Of Pesticides Before Infusion Preparationmentioning

confidence: 99%

A review on the pesticides in coffee: Usage, health effects, detection, and mitigation

Merhi

Kordahi

Hassan

2022

Front. Public Health

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Coffee is considered among the most popular beverages and is classified as the second most exported item worldwide. The presence of pesticides in this staple commodity is a challenge to import and export activities, in addition to the fact that pesticides are toxins of public health concern. Even if pesticides are applied properly and their residues are within the acceptable range, it is important to know the fate of these pesticides prior to their ingestion. A plethora of research has been done to optimize methods and thus to have valid procedures to test for the presence of pesticides in coffee. In this review, the analytical methods used in these articles to detect and quantify the pesticides in coffee beans, roasted coffee, and coffee infusion were identified. This review highlights as well the main factors that play a key role in having good separation, identification, and recovery of pesticide residues in the aforementioned items. In addition, the review explains the effect of pesticides on human health and the mitigation techniques for pesticide exposure.

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“…There have been many studies on the residue behaviors in various crops such as coffee beans, cucumber, eggplant, plum, melon, chilli pepper, wolfberry and rice. [9][10][11][12][13][14][15][16] Analytical methods for investigating dinotefuran and its metabolites in animalderived foods such as milk, egg and pork, as well as environmental samples including soil and water, were also developed using liquid chromatography tandem mass spectrometry (LC-MS/MS). 17 In the earlier study, dinotefuran and metabolites residue in green tea were analyzed by a slightly modified QuEChERS (i.e.…”

Section: Introductionmentioning

confidence: 99%

Residue behavior, transfer and risk assessment of tolfenpyrad, dinotefuran and its metabolites during tea growing and tea brewing

Bai

Chen

et al. 2021

J Sci Food Agric

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BACKGROUND: Tolfenpyrad and dinotefuran are two representative pesticides used for pest control in tea gardens. Their application may bring about a potential risk to the health of consumers. Therefore, it is essential to investigate the residue behavior, transfer and risk assessment of tolfenpyrad, dinotefuran and metabolites from tea garden to teacup.RESULTS: An effective analytical method was established and validated to simultaneously determine tolfenpyrad, dinotefuran and its metabolites (DN and UF) in tea. The average recoveries of tolfenpyrad, dinotefuran, DN and UF were in the range 72.1-106.3%, with relative standard deviations lower than 11.8%. On the basis of the proposed method, the dissipation of tolfenpyrad and dinotefuran in fresh tea leaves followed first-order kinetics models with half-lives of 4.30-7.33 days and 4.65-5.50 days, respectively. With application amounts of 112.5-168.75 g a.i. ha -1 once or twice, the terminal residues of tolfenpyrad and total dinotefuran in green tea were lower than 19.6 and 7.13 mg kg −1 , respectively, and below their corresponding maximum residue limits . The leaching rates of tolfenpyrad and total dinotefuran during the tea brewing were in the ranges 1.4-2.3% and 93.7-98.1%, respectively. CONCLUSION: Tolfenpyrad and dinotefuran in tea were easily degraded. The RQ c and RQ a values for tolfenpyrad were 37.6% and 5.4%, which were much higher than for dinotefuran at 24.7% and 0.84%, respectively. The data indicated that there was no significant health risk in tea for consumers at the recommended dosages. The results provide scientific data regarding the reasonable use of tolfenpyrad and dinotefuran aiming to ensure safe tea consuption.

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Determinations of dinotefuran and metabolite levels before and after household coffee processing in coffee beans using solid‐phase extraction coupled with liquid chromatography‐tandem mass spectrometry

Abstract: The cumulative effects of the three processing methods are of paramount importance with respect to an evaluation of the risks associated with the ingestion of pesticide residues, particularly those in coffee beans. © 2018 Society of Chemical Industry.

Cited by 18 publications

References 30 publications

Application of the QuEChERS method combined with UHPLC-QqQ-MS/MS for the determination of isoprocarb and carbaryl pesticides in Indonesian coffee

Application of the QuEChERS method combined with UHPLC-QqQ-MS/MS for the determination of isoprocarb and carbaryl pesticides in Indonesian coffee

A review on the pesticides in coffee: Usage, health effects, detection, and mitigation

Residue behavior, transfer and risk assessment of tolfenpyrad, dinotefuran and its metabolites during tea growing and tea brewing

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